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Table 2-2 Computer Setup (F10) Utility menu descriptions for the HP Z420, Z620, and the Z820
Workstations (continued)
Heading Option Description
System Security Provides these options:
●
Data Execution Prevention—Enables or disables Data Execution Prevention mode in
the CPUs. This mode prohibits code from running in pages that were set up as data
pages, and prevents attacks such as buffer overflows. Operating system support is
required for this feature.
●
Virtualization Technology (VTx)—Enables or disables Intel
®
Virtualization Technology
to increase workstation performance.
●
Intel
®
(VTd)—(Enabled or Disabled) Controls the underlying processor and chipset
features needed to support a virtual appliance.
●
Interrupt Remapping—Enables or disables—Only available when Intel
®
(VTx) is
enabled.
●
Coherency Support—Enables or disables—Only available when Intel
®
(VTx) is
enabled.
●
ATS Support—Enables or disables—Only available when Intel
®
(VTx) is enabled.
●
Pass-through DMA—Enables or disables—Only available when Intel(R) (VTx) is
enabled.
●
Embedded Security Device—This option becomes available if Embedded Device is set
to Available under Device Security.
NOTE: Embedded Security Device must be set to Device Available in the Device
Security menu, and you must create a Setup Password, in order to configure the
Embedded Security Device.
Embedded Security Device (Hidden or Available) turns the Trusted Platform
Mechanism (TPM) on and off. Device Hidden is the default. If this option is made
available, the following options become available:
◦
Power-On Authentication Support—Enables and disables an authentication
feature that requires you to enter a TPM user key password to start the
workstation. This feature uses the TPM to generate and store the authentication
password.
◦
Reset Authentication Credential—Resets the authentication functionality and
clears authentication credentials.
To enable the Embedded Security Device and to access any security features
associated with the device, you must enter a setup password.
Setting a device to Available enables the operating system to access the device.
Hidden makes the device unavailable. It is disabled by the BIOS and cannot be
enabled by the operating system.
56 Chapter 2 System management